Sectional steam-generator



(No Model.)

0. P. HIGGINS.

' SEGTIONAL STEAM GENERATOR.

No. 595,829. "Patented Dec. 21, 1897.

UNITED STATES PATENT OFFICE.

CAMPBELL P. HIGGINS, OF ROSELLE, NEW JERSEY.

SECTIONAL STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 595,829, dated December21, 1897.

Application filed March 13, 1897. Serial No. 627,899- (No model.)

To all whom it may concern.-

Be it known that I, CAMPBELL P. HIGGINS, a citizen of the United States,residing at B0- selle, in the county of Union and State of New Jersey,have invented a new and useful Improvement in SectionalSteam-Generators, of which the following, taken in connection with theaccompanying drawings, is a specification.

The invention relates to headers for sectional steam-generators intowhich the ends of inclined water-tubes are secured and which form theprincipal steam-generating surface.

In the drawings, Figure 1 is a perspective view of a header embodying myinvention; Fig. 2, a section of the same on the line 7 7, Fig. 1; Fig.3, a side view showing the shape, construction, and tube connections;Fig. 4, a front View with the hand-hole covers or plates removed; Fig.5, a sectional longitudinal View of the front and ends in one separatepart; Fig. 6, a cross-section of the same on the line 6 6, Fig. 5; andFigs. 7 and 8, corresponding views of the other or inner part that isconnected with that shown in Fig. 5 to form the complete header shown inFig. 3.

The invention is shown in connection with a header of serpentine form bywhich the water-tubes are arranged either singly or in clusters in astaggered relative position; and it consists in adapting such a headerfor use interchangeably with either a series of single water-tubes oflarge size or with a series of clusters of tubes of smaller size, orboth, without varying the shape of the header or interfering with thecleaning, placing, or removal of either kind of tubes through theopposite hand-holes, which are necessarily restricted in size. I

In the present instance the header is made up in two separate parts, asshown at A and B, Figs. 5 and 7, the part A forming one face and twoends and the part B made in trough shape to form the opposite face andtwo sides, the respective parts being united by welding or otherwise toform the complete header. The face of the part B is made with a seriesof depressions a a, as shown in Figs. 3 and 7, in order to present aface to each tube b or cluster 12 corresponding to the inclination ofthe latter-when secured, and the hand-holes 0 upon the opposite face Aare made in line with each depression, so that any or all the tubes maybe accessible for placing, securing, cleaning, or removal, the ends ofthe clusters of tubes being fully or partially exposed, so as to beaccessible and capable of removal through the hand-hole opening, asshown in dotted lines, Fig. 3.

In order that single large tubes or clusters of small tubes of standarddiameters, respectively of four and two inches, may be usedinterchangeably, the depressions or steps a a are formed in a line atright angles with the center of each tube-opening, as shown on the faceview, Fig. 1. This construction provides for the interchange of thetubes and preserves the necessary degree of exposure of the clusters ofthe smaller tubes to render them accessible for placing, cleaning,repairs, or removal through the tube-opening.

In this invention I provide a serpentine header adapted for use withinclined watertubes either of full size or with clusters of tubes ofsmaller size, or both, each capable of being interchanged, secured,cleaned, or removed.

What I claim, and desire to secure by Letters Patent, is-- 1. A headerfor sectional steam generators composed of a trough-shape part havingsinuous sides and a bottom constructed with a series of perforatedtransverse angular steps or depressions, and a second part having aperforated face and bent ends to fit the trough and secured to it,substantially as described.

2. A serpentine header for sectional steamgenerators,having one of itsfaces constructed with a series of transverse angular'steps ordepressions perforated to receive inclined water-tubes singly or inclusters as shown, said depressions being formed in line at right angleto the center of the perforation or'tubeopening, and the opposite faceof the header provided with hand-holes in line with the tubes andthrough which all of said tubes are accessible for placing, securing,cleaning or removal, as set forth.

CAMPBELL P. HIGGINS.

